computer freezing and requires a manual shutdown

[Tonyamichelle82]

Hi, my computer is freezing up requiring a manual shut down and sometimes restarts by itself. My cpu fan went bad and i just had that replaced. Sometimes it takes 30-45 min before it acts up but most of the time it does it shortly after i boot it up. I have done a full reformat on the computer, installed windows again and everything. I am not too computer savvy so i don't know what else to do about this, i am at my wits end and i need to solve this problem. Any help would be greatly appreciated

 

[scrooge]

(My cpu fan went bad and i just had that replaced)

did you replace it yourself or did you take it somewhere?
first thing i'm thinking of is maybe the heatsink is not set right on cpu. can you tell us what your temps are?

scrooge